It can be difficult to differentiate between a wart and a callus. If the pain is greater with transverse compression (squeezing the lesion) than with direct pressure (pushing the lesion), the lesion is likely a wart. —Tonya Khan, MPH, PA-C, Fort Worth, Tex. (182-8)


These are letters from practitioners around the country who want to share their clinical problems and successes, observations and pearls with their colleagues. We invite you to participate. If you have a clinical pearl, submit it here.